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Time-resolved changes in biovolumes (μm3 per field of view) of Veillonella sp. (Va), A. oris (Ao), S. oralis (So), and P. gingivalis (Pg) following 4 h and 18 h of incubation in 25% saliva-fed flow cells (see Fig. 7). An asterisk indicates statistically significant increases (P < 0.05) in bacterial growth. Error bars indicate standard deviations.
